---
title: "Deploy Langflow Pre-releases"
description: "Simple Langflow 1.0 Preview deployment using PostgreSQL as the database."
category: "AI/ML"
url: https://railway.com/deploy/UsJ1uB
---

# Deploy Langflow Pre-releases

Simple Langflow 1.0 Preview deployment using PostgreSQL as the database.

**[Deploy Langflow Pre-releases on Railway](https://railway.com/template/UsJ1uB)**

Machine-readable deploy manifest (JSON, validated by TemplateCI): https://railway.com/deploy/UsJ1uB/manifest.json

- **Category:** AI/ML
- **Total deploys:** 358

## Template content

### langflowai/langflow:1.0-alpha

- **Image:** langflowai/langflow:1.0-alpha
- **Start command:** `python -m langflow run --host 0.0.0.0`
- **Public domain:** Yes

### Postgres https://devicons.railway.app/i/postgresql.svg

- **Image:** ghcr.io/railwayapp-templates/postgres-ssl:latest

## Documentation

[Langflow](https://github.com/logspace-ai/langflow) is a visual framework for building multi-agent and RAG applications

This template is a simple setup that provides a persistent database with the use of PostgreSQL.

Environment variables:
- `LANGFLOW_LOG_LEVEL`: this is used to set the Langflow's logging level to improve debugging experience and to better control the logs.
- `LANGFLOW_PORT`: sets Langflow port. Defaults to Railway's exposed port.
- `LANGFLOW_SECRET_KEY`: Secret Key. Set it to a Secret value as this is used for authentication.
- `LANGFLOW_DATABASE_URL`: Set this to the DATABASE_URL. This is set to the URL of the Postgres instance that we set up in this template.

Other environment variables can be found in the [Langflow repo](https://github.com/logspace-ai/langflow). All Langflow variables should start with `LANGFLOW_`.





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